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- /*
- Copyright (C) 2013 xyz, Ilya Zhuravlev <whatever@xyz.is>
- Copyright (C) 2016 Nore, Nathanaëlle Courant <nore@mesecons.net>
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 2.1 of the License, or
- (at your option) any later version.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU Lesser General Public License for more details.
- You should have received a copy of the GNU Lesser General Public License along
- with this program; if not, write to the Free Software Foundation, Inc.,
- 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
- #include "enriched_string.h"
- #include "util/string.h"
- #include "debug.h"
- #include "log.h"
- using namespace irr::video;
- EnrichedString::EnrichedString()
- {
- clear();
- }
- EnrichedString::EnrichedString(std::wstring_view string,
- const std::vector<SColor> &colors)
- {
- clear();
- m_string = string;
- m_colors = colors;
- }
- EnrichedString::EnrichedString(std::wstring_view s, const SColor &color)
- {
- clear();
- addAtEnd(translate_string(s), color);
- }
- void EnrichedString::clear()
- {
- m_string.clear();
- m_colors.clear();
- m_has_background = false;
- m_default_length = 0;
- m_default_color = irr::video::SColor(255, 255, 255, 255);
- m_background = irr::video::SColor(0, 0, 0, 0);
- }
- EnrichedString &EnrichedString::operator=(std::wstring_view str)
- {
- clear();
- addAtEnd(translate_string(str), m_default_color);
- return *this;
- }
- void EnrichedString::addAtEnd(std::wstring_view s, SColor initial_color)
- {
- SColor color(initial_color);
- bool use_default = (m_default_length == m_string.size() &&
- color == m_default_color);
- m_string.reserve(m_string.size() + s.size());
- m_colors.reserve(m_colors.size() + s.size());
- size_t i = 0;
- while (i < s.length()) {
- if (s[i] != L'\x1b') {
- m_string += s[i];
- m_colors.push_back(color);
- ++i;
- continue;
- }
- ++i;
- size_t start_index = i;
- size_t length;
- if (i == s.length()) {
- break;
- }
- if (s[i] == L'(') {
- ++i;
- ++start_index;
- while (i < s.length() && s[i] != L')') {
- if (s[i] == L'\\') {
- ++i;
- }
- ++i;
- }
- length = i - start_index;
- ++i;
- } else {
- ++i;
- length = 1;
- }
- std::wstring escape_sequence(s, start_index, length);
- std::vector<std::wstring> parts = split(escape_sequence, L'@');
- if (parts[0] == L"c") {
- if (parts.size() < 2) {
- continue;
- }
- parseColorString(wide_to_utf8(parts[1]), color, true);
- // No longer use default color after first escape
- if (use_default) {
- m_default_length = m_string.size();
- use_default = false;
- }
- } else if (parts[0] == L"b") {
- if (parts.size() < 2) {
- continue;
- }
- parseColorString(wide_to_utf8(parts[1]), m_background, true);
- m_has_background = true;
- }
- }
- // Update if no escape character was found
- if (use_default)
- m_default_length = m_string.size();
- }
- void EnrichedString::addChar(const EnrichedString &source, size_t i)
- {
- m_string += source.m_string[i];
- m_colors.push_back(source.m_colors[i]);
- }
- void EnrichedString::addCharNoColor(wchar_t c)
- {
- m_string += c;
- if (m_colors.empty()) {
- m_colors.emplace_back(m_default_color);
- } else {
- m_colors.push_back(m_colors.back());
- }
- }
- EnrichedString EnrichedString::operator+(const EnrichedString &other) const
- {
- EnrichedString result = *this;
- result += other;
- return result;
- }
- void EnrichedString::operator+=(const EnrichedString &other)
- {
- bool update_default_color = m_default_length == m_string.size();
- m_string += other.m_string;
- m_colors.insert(m_colors.end(), other.m_colors.begin(), other.m_colors.end());
- if (update_default_color) {
- m_default_length += other.m_default_length;
- updateDefaultColor();
- }
- }
- EnrichedString EnrichedString::getNextLine(size_t *pos) const
- {
- size_t str_pos = *pos;
- // Split per line
- size_t str_nl = getString().find(L'\n', str_pos);
- if (str_nl == std::wstring::npos)
- str_nl = getString().size();
- EnrichedString line = substr(str_pos, str_nl - str_pos);
- str_pos += line.size() + 1;
- *pos = str_pos;
- return line;
- }
- EnrichedString EnrichedString::substr(size_t pos, size_t len) const
- {
- if (pos >= m_string.length())
- return EnrichedString();
- if (len == std::string::npos || pos + len > m_string.length())
- len = m_string.length() - pos;
- EnrichedString str(
- m_string.substr(pos, len),
- std::vector<SColor>(m_colors.begin() + pos, m_colors.begin() + pos + len)
- );
- str.m_has_background = m_has_background;
- str.m_background = m_background;
- if (pos < m_default_length)
- str.m_default_length = std::min(m_default_length - pos, str.size());
- str.setDefaultColor(m_default_color);
- return str;
- }
- const std::vector<SColor> &EnrichedString::getColors() const
- {
- return m_colors;
- }
- const std::wstring &EnrichedString::getString() const
- {
- return m_string;
- }
- void EnrichedString::updateDefaultColor()
- {
- sanity_check(m_default_length <= m_colors.size());
- for (size_t i = 0; i < m_default_length; ++i)
- m_colors[i] = m_default_color;
- }
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